Data courtesy of:

AQI: Good (0 - 50) AQI: Moderate (51 - 100) AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy (151 - 200) AQI: Very Unhealthy (201 - 300) AQI: Hazardous(301 - 500) Action DayAction Day
Local Air Quality Resources
Current Air Quality Index | Forecast | Ozone Action Program
State Air Quality Resources
Air Quality Partnership of Lehigh Valley - Berks
Air Quality Partnership of the Delaware Valley
Air Quality Partnership of the Susquehanna Valley
American Lung Association (ALA) of Pennsylvania
PA Allergy & Asthma Association
Pennsylvania DEP - BAQ - Contacts
Pennsylvania DEP - BAQ - Current Air Quality Index (AQI) by Area
Pennsylvania DEP - Bureau of Air Quality (BAQ)
Pennsylvania DEP – Air Quality Forecast Home Page
Pennsylvania DEP – Home Page
Southwest PA Air Quality Partnership

AirNow.gov is undergoing maintenance. Updates for the forecasts and current conditions are not available between midnight and 4 am EST.

Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
Health Message: None
Data Not Available
AQI - Pollutant Details
Particles (PM2.5)
Data Not Available
Forecast Discussion: This Weekend's Air Quality Forecast: On Saturday, overcast skies will persist for the much of the day as a storm system just south of the region impacts our area. This storm system will spread its swath of precipitation far enough north to provide snow for portions of the region (with highest amounts expected in the far south and eastern portions of the area). Light to moderate southerly winds will help keep temperatures in the mid 30s and PM 2.5 levels within the low moderate threshold. *** For Sunday, mostly cloudy skies will continue to persist across the region as one storm system moves into far eastern New England and another one moves in over the Great Lakes / Ohio Valley region. This system will approach our region during the middle to latter part of the day. As it approaches, expect a new round of snow to develop over the area. Overall, temperatures should continue to hover near the freezing mark. Air quality though will take a noise dive as winds pick up with the approaching storm system. Expect good air quality to persist. *** On Monday, mostly cloudy skies will persist for much of the day as the clipper system, which approached the region on Sunday, moves off to our east. There could be some lingering snow showers early on before the storm pulls away from the region. Winds will turn more out of the north, allowing colder air to filter in. Afternoon temperatures will peak in the mid to upper 20s. The combination of the colder and drier air along with the increase in winds during the day will keep PM 2.5 levels within the good category. *** Extended Outlook: As we take a peek into next week, we notice that the week will start off on the seasonably cool side as a new clipper system slides from west to east across western PA. This system should dump a few more inches of snow on the region before moving out to sea. Colder and drier air will build in on the backside and help keep temperatures in the 20s and air quality in the good range for a couple of days. Temperatures will rebound during the second half of the week as higher pressure tries to build in. Then a new storm system (with an even colder air mass) is slated to begin to push into our area over the weekend. The highest PM 2.5 levels are expected to occur in the Thursday / Friday time frame period when the warmest air is over the region. --Nolan

Current Conditions
Data Not Available

Past Air Quality Maps and Data
Yesterday's Maps and Data
Air Quality Maps Archives (by region)

E-Mail Notification